Known issue? java/nio/channels/DatagramChannel/MulticastSendReceiveTests.java

[Alan Bateman]

On 31/12/2011 01:31, Kelly O'Hair wrote:
> Just wondering if anyone has seen this testcase failure.
> I'm using Fedora 9 x86.
>
> -kto
> :
>
> Test DatagramChannel to INET socket
> join 225.4.5.6 @ virbr0
> Send message from 192.168.122.1 ->  group 225.4.5.6 (id=0x23b98c4a)
> Waiting to receive message
> STDERR:
> java.lang.RuntimeException: Expected message not recieved
>
We've had test failures on systems with the ip6tables packet filter 
blocking IPv6 multicast packets but otherwise I can't think of any issues.

In this case the interface is virbr0 so I assume this is a virtual 
environment. I think this may need going through the libvirt 
configuration as I assume the issue is that IPv4 multicast packets 
aren't being forwarded.

-Alan.